Downgrade Pie to Oreo - Xiaomi Mi A2 / 6X Questions & Answers

I have updated pie with December security update now i want to roll back Oreo anyway downgrade p to o ?

Why

Sutanshu said:
I have updated pie with December security update now i want to roll back Oreo anyway downgrade p to o ?
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ARB is enabled for Android Pie December security patch but it's Google ARB so this ARB is disabled when bootloader is unlocked so you can rollback to Oreo 9.6.16.0.ODIMIFE with fastboot (or using the EDL mode if you unlock flashing for critical with this command:
fastboot flashing unlock_critical
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) when you use MiFlash and if your bootloader is unlocked

GuestK0087 said:
ARB is enabled for Android Pie December security patch but it's Google ARB so this ARB is disabled when bootloader is unlocked so you can rollback to Oreo 9.6.16.0.ODIMIFE with fastboot (or using the EDL mode if you unlock flashing for critical with this command:
) when you use MiFlash and if your bootloader is unlocked
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Hi man,
Sorry to bother you,
But just wandering if you could help me out with Mi Flash Tool. Can we Flash OTA update through Mi Flash? Currently having Pie with November patch.
I couldn't update my phone.
Everytime it thru to install the update it gives error message like this"installation problem".
Big thanks bro with the help

Related

Lock bootloader again with oeminfo to try the warranty repair

Hi, unfortunately my p10 drop on the floor from an high of 8 cm... Yes almost 4 in an the camera now has a strange yellow border. Of course this issue happens only on the color camera. The b/w camera works well.
The problem is that I have unlocked the bootloader. Can I do something to prepare the phone for rma?
I've the original oem info and of course the unlock code.
Thank you in advance
Maybe downgrade to nougat and then ota update to oreo will help. When I made debrand had unlocked bootloader and frp. Then did ota update to oreo and now have bootloader and frp properly locked.
lukastob said:
Maybe downgrade to nougat and then ota update to oreo will help. When I made debrand had unlocked bootloader and frp. Then did ota update to oreo and now have bootloader and frp properly locked.
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What guide should I follow for this?
For debrand I used this guide:
https://forum.xda-developers.com/p10/how-to/huawei-p10-debrand-rebrand-update-guide-t3691013
but I was doing it on nougat and I am not sure how it works with downgrading from oreo to nougat.
If you are already on oreo (and C432 region) you could try to use this guide :
https://forum.xda-developers.com/p10/how-to/guide-manual-updgrade-to-update-oreo-t3758286
tutorial 2 to flash the first full-ota oreo 8.0.0.360 from: http://pro-teammt.ru/firmware-database
but here is question to @Jannomag if it's certain that the script will work from newer to older oreo version. If so then try to use HiSuite to downgrade to nougat (for .360 it should be possible when hit firmware update -> switch to other version) and finally do the ota update to oreo. Be aware that I am not absolutely sure it will work, just suppose it should.
lukastob said:
For debrand I used this guide:
https://forum.xda-developers.com/p10/how-to/huawei-p10-debrand-rebrand-update-guide-t3691013
but I was doing it on nougat and I am not sure how it works with downgrading from oreo to nougat.
If you are already on oreo (and C432 region) you could try to use this guide :
https://forum.xda-developers.com/p10/how-to/guide-manual-updgrade-to-update-oreo-t3758286
tutorial 2 to flash the first full-ota oreo 8.0.0.360 from: http://pro-teammt.ru/firmware-database
but here is question to @Jannomag if it's certain that the script will work from newer to older oreo version. If so then try to use HiSuite to downgrade to nougat (for .360 it should be possible when hit firmware update -> switch to other version) and finally do the ota update to oreo. Be aware that I am not absolutely sure it will work, just suppose it should.
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Downgrading to a lower version as Dec2018 security patches can be indeed a problem but this shouldn't cause a brick. The updated should fail flashing /kernel and /ramdisk from update files.
Jannomag said:
Downgrading to a lower version as Dec2018 security patches can be indeed a problem but this shouldn't cause a brick. The updated should fail flashing /kernel and /ramdisk from update files.
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I tried to flash B365 oreo over B384 with tutorial 2, update started as usual then reached 100% and phone switched off totaly. Now looks like bricked, can't switch on, charging doesn't work, when connected to pc system shows unrecognized USB SER device. Is there any hope to unbrick it?
I have the same. Send to warranty and they fix this by replace the Motherboard. Now i can't unlock bootloader because no offical codes and DC unlocker not support newest security patch from Huawei. Otherwise Phone works fine and i have extra warranty to 2022 .

Ajuda para atualizar meu dispositivo (após Root/Magisk/build.prop)

Hello everyone, I need a little help. I bought a MiA2 in October 2018, which unlocked the bootloader, installed the Magisk module and changed the line of code through build.prop to get the Camera2Api. I was stuck in the November 2018 update and would like to know, in your opinion what would be the best method for me to have my device updated again and consequently get Android 9 installed?
GuiCv said:
Hello everyone, I need a little help. I bought a MiA2 in October 2018, which unlocked the bootloader, installed the Magisk module and changed the line of code through build.prop to get the Camera2Api. I was stuck in the November 2018 update and would like to know, in your opinion what would be the best method for me to have my device updated again and consequently get Android 9 installed?
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Download the latest flashable from miui roms
http://en.miui.com/download-353.html
which is 10.0.8.0, clean flash it via Mi tool and after update via ota to 10.0.9.0. Important is at mi flash to check clean all not clean all and relock also not keep data because u r changing from oreo to pie. Other solution is to restore original boot.img, factory reset (because changing from oreo to pie) and update via ota to pie. You have to restore boot.img by flashing original boot.img via fastboot and not by magisk because causes bootloop. I think the clean flash is the better solution.

[Help] Downgrade from 9.1.0.311

Hi,
Did anyone manage to downgrade from 9.1.0.311 to 9.0 or 8?
When I am trying to rollback to 9 in Hisuite it doesn't work (TWRP says No OS installed).
Eventually, I would like to downgrade to 8.1/8.0/
(It's a device with unlocked bootloader, and I would like to keep it unlocked).
Thanks!
I was able to downgrade to 8.1 from 9.0.0.286. was using TWRP and cannot update via OTA. I use a modded version of hi suite and use rollback option. before reboot, flashed the recovery from .195 firmware via fastboot and hold volume up while turn on.. to my surprise it apply the update and send me back to 8.1.
The bootloader still unlocked after this. that's was strange.
brilljohn said:
Hi,
Did anyone manage to downgrade from 9.1.0.311 to 9.0 or 8?
When I am trying to rollback to 9 in Hisuite it doesn't work (TWRP says No OS installed).
Eventually, I would like to downgrade to 8.1/8.0/
(It's a device with unlocked bootloader, and I would like to keep it unlocked).
Thanks!
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I was able to downgrade from 9.1.0.311 to 8.0 following the steps from this thread...
https://forum.xda-developers.com/hu...awei-p20-pro-charlotte-l29c432b131-8-t3809964
Enviado desde mi CLT-L09 mediante Tapatalk

I can downgrade MI8 from 11.0.5 to android 8.1?

Hi I can downgrade my Mi8 ? to first android? or anti rollback" w Miui 10(Android 8.1) bricked my device?
ziom5510 said:
Hi I can downgrade my Mi8 ? to first android? or anti rollback" w Miui 10(Android 8.1) bricked my device?
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You can roll back to 9.6.7 as far as I've tested. Not sure about anything previous. Rollback is at 1, so technically not set to active. Make sure you downgrade using the proper global or china ROM based on your phone region. Only downgrade through fastboot ROM partitions, not using recovery versions. Finally, remember not to lock the bootloader during flashing.

How to downgrade firmware redmi 10x 5g (atom)??

Hi all
After updatng firmware to android 11 miui 12.0.1... all google services and youtube and many apps won't run . Now i need the way to downgrade firmware to android 10.
Spflash flashtool don't support our device yet.
I need help..
https://www.xda-developers.com/bypass-mediatek-sp-flash-tool-authentication-requirement/
mt6873 is our soc its supported
new sp flash tool
SP Flash Tool v5.2112 for Windows - MediaTek Flash Tool
Download SP Flash Tool v5.2112 to flash or install Stock Firmware ROM (Flash File) on the devices powered by Mediatek Chipset.
spflashtools.com
Thanks for reply
I found that the bootloader must be unlocked if not it will be a problem edl 9008 , is it true or i can flash firmware directly with locked bootloader.
you sho
elhattak7 said:
Thanks for reply
I found that the bootloader must be unlocked if not it will be a problem edl 9008 , is it true or i can flash firmware directly with locked bootloader.
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you should unlock your bootloader after that you can downgrade with mi flash too
I should wait 176 hours it's too long.
elhattak7 said:
I should wait 176 hours it's too long.
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had any solution?
Use unlock tool . net i use this to unbrick my phone from android 11 brick and flash android 10 stock fastboot rom using download mode, since sp flash tool does not work on mine
Yes , but i must wait 176 hours to unlock bootloader. Isn,t there a way to bypass this step and flash directly the official firmware (downgrade from android 11 to 10).
Hi guy, i hope you fine. I have a question about your downgrade, can you help me ? I wanna do downgrade to MIUI 11, my redmi 10x stay in MIUI 12.0.8 but with GAPPS blocks. Do you know if I can do downgrade with oficial Miflashtool ? Already bootloader unlocked. did you try this method ? tks a lot for any help.
elhattak7 said:
Yes , but i must wait 176 hours to unlock bootloader. Isn,t there a way to bypass this step and flash directly the official firmware (downgrade from android 11 to 10).
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Click to collapse
I have a question about your downgrade, can you help me ? I wanna do downgrade to MIUI 11, my redmi 10x stay in MIUI 12.0.8 but with GAPPS blocks. Do you know if I can do downgrade with oficial Miflashtool ? Already bootloader unlocked. did you try this method ? tks a lot for any help.

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